Station-indicator.



J. G. EVANS. STATION INDICATOR.

APPLICATION FILED APR.25, 1912.

1,064,304. Patented June 10, 1913.

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J. G. EVANS.

STATION INDICATOR.

APPLICATION FILED APR. 25, 1912.

1,064,304, Patented June 10, 1913.

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rrE sATS JOHN G. EVANS, 0E MILLVILLE, NEW JERSEY, ASSIGNOR 0E ONE-THIRDTO WADSWORTH oREssE, or PITMAN, NEW JERSEY.

STATION-INDICATOR.

Specification of Letters Patent.

Application filed April 25, 1912.

Patented June 10, 1913. Serial No. 693,096.

To aZZ whom/2'15 may concern Be it known that 1, JOHN G. EVANS, acitizen of the United States, residing at Millville, in the county ofCumberland and State of New Jersey, have invented certain new and usefulImprovements in Station- Indicators, of which the following is a specification.

My invention relates to improvements in station indicators, the objectof the invention being to provide a device of this character adapted tobe positioned in a car and operated by either the motorman or conductorto display the names of stations so that the passengers can always tellthe station the car is approaching.

A further object is to provide improved mechanism for operating thedevice, and an improved arrangement of parts, whereby a mistake may becorrected.

With these and other objects in View, the invention consists in certainnovel features of construction and combinations and arrangements ofparts, as will be more fully hereinafter described and pointed out inthe claim.

In the accompanying drawings: Figure 1, is a fragmentary end view of acar illustrating my improvements. Fig. 2, is a view partly in elevationof the indicator with the front removed and showing the cylinders inlongitudinal section. Fig. 3, is a view in horizontal section on theline 33 of Fig. 2. Fig. 4, is a view in longitudinal section on the line4& of Fig. 2. Fig. 5, is a view in section on an enlarged scaleillustrating the pinion and ratchet wheel connection. Fig. 6, is a viewin section on the line 66 of Fig. 5. Fig. 7, is a view in verticalsection on the line 77 of Fig. 8, and Fig. 8, is a view in horizontalsection on the line 88 of Fig. 7.

1, represents a car and 2 the rectangular casing of my improved stationindicator which is preferably located in the end of the car asillustrated. The casing 2 is divided by a horizontal partition 3 into anupper sign compartment 4, and a lower cylinder compartment 5. In theupper compartment 4, an apron 6 is wound at its ends upon drums 7 and 8.Said apron is secured to the drums and the latter are secured to shafts9 and 10 respectively, projecting into the compartment 5 below. Theapron 6 contains the names of the stations which are exposed through anopening 11 in a curtain 12, and

through an opening or transparent portion 13 in the front of easing 2,and this apron is held in proper position at the point of exposure byidle rollers 8. The shaft 10 is connected by beveled gears 14 with awindmg shaft 15, and thelatter projects through the end of the casingand has an angular key receiving end 16 to receive an ordinary key (notshown) to wind the apron on the drum 8.

The shaft 9 in compartment 5 has a ratchetwheel 17 keyed thereto andengaged by a spring-pressed pawl 18 on a pinion 19, the latter loose onshaft 9 and meshing with the teeth of a rack bar 20. This rack bar 20constitutes a piston rod which is secured to a piston 21 in an aircylinder 22, said piston normally held in one end of the cylinder by acoiled spring 23.

The curtain 12 above referred to is wound upon and secured at one endto, a spring roller 24 and the free end of the curtain is secured to apost 25, the latter projecting through a slot 26 in partition 3, andsecured to a piston 27. The piston 27 is mounted in an air cylinder 28,and is normally held in one end of the cylinder by means of a coiledspring 29. The curtain 12 contains the word Mistake, and this curtain isonly moved in the event the operator makes some mistake in the operationof the indicator.

If, for example, the name of a station is displayed, and for some reasonthe car comes to a stop at some other station or before it reaches thestation, the curtain will be operated to indicate the word Mistake andcover the name of the station by moving the curtain longitudinally aswill now be ex plained. lVith cylinder 22, an air pipe 30 communicatesand an air pipe 31 communicates with the end of cylinder 28. These airpipes 30 and 31 extend to a point in convenient reach of the motorman orconductor, and terminate in a valve casing 82. An air supply pipe 33also communicates with this valve casing, and supplies the necessaryair. In the casing 32, a three-way valve 8% is located, and is providedwith a handle 35 to move the same.

By reference particularly to Figs. 7 and 8, it will be seen that thepipes 30 and 31 normally register with exhaust ports 36 in valve 34. Thevalve is shown in Fig. 8 in normal position, and its movement in eitherdirection is limited by stops 37 and 3S respectively. If the sign is tobe changed, the arm will be swung into engagement with the stop 38. Thiswill connect the air supply with pipe 30, and the air will compel thepiston 21 to move and cause the apron to move through the medium of thepinion 19, pawl 18, ratchet wheel 17, and shaft 9. WVhen the valve isreturned to the position shown in Fig. 8, the air in the cylinder mayreadily escape through the exhaust port 36, and the spring 23 willreturn piston 21 to normal position during which operation the pawl 18will ride over the teeth of ratchet wheel 17. If for any reason amistake has been made in the sign, or if the car stops at a point whichis not the station indicated, the operator throws the handle inengagement with stop 37. This connects the supply 83 with pipe 31, andpiston 27 is caused to move so as to move the curtain l2 longitudinallyand position the word Mistake at the opening or transparent portion ofthe indicator. This apron will remain in this posit-ion until the valve3a is returned to normal position when the air in the cylinder 28 willexhaust through the exhaust port 36, and the spring 29 will return thepiston to its former position, the apron in the meantime winding uponspring roller 24.

Various slight changes might be made in the general form and arrangementof parts Copies of this patent may be obtained for described withoutdeparting from my invention, and hence I do not limit myself to theprecise details set forth, but consider myself at liberty to make suchchanges and alterations as fairly fall within the spirit and scope ofthe appended claim.

Having thus described my invention,what I claim as new and desire tosecure by Letters Patent is:

In combination, a station indicator, a movable apron in theindicatorcontaining the names of stations, an apron containing the word Mistakeand adapted to be moved across the station name on the apron, cylinders,pistons in said cylinders controlling the movement of the apron and thecurtain, springs in said cylinders normally holding the pistons in oneposit-ion, an air supply pipe, a valve casing, pipes connecting thevalve casing with the respective cylinders, a valve in said casingconstructed to connect the supply pipe with either of the cylinderpipes, and exhaust ports in said valve normally registering with thecylinder pipes, substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JOHN G. EVANS.

Vitnesses S. XV. Fos'rne, C. R. ZIEGLER.

five cents each, by addressing the Commissioner of Patents, Washington,I). C.

